Which of the following are associated with a rock's chemical composition? select all that apply.
a. dissolved gases
b. crystalline structure
c. types of chemical elements
d. amounts of chemical elements

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior

Reactants undergo chemical reaction to form products. this chemical equation represents one such reaction. the coefficient for one of the reactants or products is incorrect. which part of the chemical equation is incorrect?